field officer

an officer holding a field grade.

Origin of field officer

First recorded in 1650–60

Being now a field-officer, my name was placed on the roster of picket field-officers of the day.

War from the Inside |Frederick L. (Frederick Lyman) Hitchcock
He was mounted on a horse which had belonged to a field-officer; and, though aged, still possessed much spirit.

Stories of Animal Sagacity |W.H.G. Kingston
Having now given some idea of picket service, I return to my own first experiences as field-officer of the day.

War from the Inside |Frederick L. (Frederick Lyman) Hitchcock
You hate drill—parade—inspection—the adjutant—the wine committee—the paymaster—the field-officer of the day—and the major's wife.

A Rent In A Cloud |Charles James Lever

A field-officer, who had been an observer of his conduct, ordered a party of his men to attempt his rescue.

Wilson's Tales of the Borders and of Scotland |Various

field officer

an officer holding field rank, namely that of major, lieutenant colonel, or colonel